9978340354 has 4 divisors (see below), whose sum is σ = 14967510534. Its totient is φ = 4989170176.

The previous prime is 9978340321. The next prime is 9978340381. The reversal of 9978340354 is 4530438799.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9585389025 + 392951329 = 97905^2 + 19823^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2494585087 + ... + 2494585090.

Almost surely, 2^9978340354 is an apocalyptic number.

9978340354 is a deficient number, since it is larger than the sum of its proper divisors (4989170180).

9978340354 is a wasteful number, since it uses less digits than its factorization.

9978340354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4989170179.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The square root of 9978340354 is about 99891.6430638720. The cubic root of 9978340354 is about 2152.8780892191.

The spelling of 9978340354 in words is "nine billion, nine hundred seventy-eight million, three hundred forty thousand, three hundred fifty-four".